On Wed, 07 Mar 2007 23:26:20 +0100, Steve Riley <steven.riley@kepware.com>
wrote:
> I have noticed that there are many HTML Markup Validation Services on
> the web besides the one offered by http://validator.w3.org/. I tried
> running my pages through the different validators and got different
> results with each. Some would say the page is free of errors and
> warnings, while others would say it is not. Why is this so?
It depends which technology they use. Some validation technologies are
more expressive than others, so a validator using them can check for more
errors.
Best wishes,
Steven Pemberton